User talk:Mengfei zhang/User/Mengfei zhang/sandbox

Suggestions: Can you add a discussion about the associative and dissociative mechanism? What about allylic stereocontrol? You could show some work of Vedejs on the directed hydroboration. Christian.gampe (talk) 13:20, 24 October 2011 (UTC)

Initial Impressions: The article is reasonably organized, but needs a lot more details and diagrams.

Suggestions:

- The lead section needs a scheme.

- The article does not have enough hyperlinking.

- The overall grammar and style need polishing.

- The selectivity depends strongly on the organoborane, and borane itself is usually the worst. 9-BBN shows high selectivities even with olefins that look very similar sterically. It might be good to show some tables here that help deconvolute the steric vs. electronic issues.

- As Christian notes, talking about the associative vs. dissociative mechanism would be useful. Check out the work of Pasto.

- Showing the mechanism for B-C bond cleavage in H2O2 workups would be useful. Also, you could mention the use of sodium perborate and other salts as a milder reagent.

- The work of Greg Fu and Dave Evans on rhodium(I)-catalyzed hydroboration deserves mention. Can you draw the catalytic cycle?

- What about catalytic variants?

- Overall, I'd like to see a lot more work on this by the time the next midterm comes around.

Eugene Kwan (talk) 01:53, 25 October 2011 (UTC)